Lifecycle record

Cisco ISR 4451-X IOS XE UNIVERSAL EOL & EOSL Dates

Check Cisco SISR4451XUK9-38S lifecycle milestones, source fields, replacement notes.

EOL & EOSL Dates and Details

SISR4451XUK9-38S lifecycle data

Lifecycle status

In EOSL Phase

Recorded lifecycle milestones in date order.

Official source fields and support milestones recorded for SISR4451XUK9-38S.

Release Date	2013-05-20
Last Ship Date: HW, License	2021-01-27
Last Ship Date: OS SW	01/27/2021
End Of New Service Attachment Date: HW	2021-10-29
End Of New Service Attachment Date: OS SW	10/29/2021
End Of SW Maintenance Releases Date: HW	2021-10-29
End Of SW Maintenance Releases Date: OS SW	10/29/2021
End Of Service Contract Renewal Date: HW	2025-01-24
End Of Service Contract Renewal Date: OS SW	01/24/2025
End of-Service-Life (EOSL)	2025-10-31
Official EOL Notice	View Official EOL Documentation

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Manufacturer	Part Number	Product Name	EOL Date
Cisco	ISR4221-B-K9	Cisco ISR 4221 High BW (2GE, 2NIM, 4G FLASH, 4G DRAM, IPB)	2019-04-30
Cisco	ISR4321-B-K9	Cisco ISR 4321 (2GE, 2NIM, 4G FLASH, 4G DRAM, IPB)	2019-04-30
Cisco	ISR4331-B-K9	Cisco ISR 4331 (3GE, 2NIM, 1SM, 4G FLASH, 4G DRAM, IPB)	2019-04-30
Cisco	SISR4451XNPEK9-38S	Cisco ISR 4451-X IOS XE UNIVERSAL - NO PAYLOAD ENCRYPTION	2020-04-30
Cisco	SISR4451XUK9-39S	Cisco ISR 4451-X IOS XE UNIVERSAL	2020-04-30